Blessing proposed consequent upon repentance

Isaiah 1 begins with a testimony to the sad condition of the
people. They were all wounds and corruption. It was useless to
chastise them any more. Their ceremonies were an abomination to
Jehovah. He desired righteousness. Nevertheless the people are called
to repentance, and are assured that blessing should follow
repentance. Such is the position which prophecy gives them. But God
knew the people who, with their princes, were wicked and corrupt; and
God declares what will take place. He will execute judgment and thus
cleanse the people and re-establish blessing. The two great
principles are thus laid down: blessing proposed consequent upon
repentance; but in fact it will be blessing brought in by judgment.